I bought nearly 100 Stat giving toys in the February event to use for my next king. Not realizing that I would have to use them on my heir before I kinged him in order to even use them

SO here's my suggestion:

Make stat toys usable on kings
It wouldn't effect their mood, and I'm NOT suggesting that they would guarantee the stats it can possibly give, just being able to give them to your king to raise his stats. ATM we can only use stat foods on our king, and most of the stat foods can only possibly give 1-2 stats where as the toys can give 2-3.

Suggestions from comments
Having a cap on how many you can use per day, at least more than 1 per day since we EXP and IMP items either don't have a cap or have a high cap that still makes it worth using the item

This came out of lack of research from me, I realize that. BUT I don't see why we can't use these specific toys on our king since they have a higher chance to give stats than any other normal toys

Here is a list of Stat items including the toys: https://www.lioden.com/topic.php?id=304429310978